I didn't get my panties in a knot about either of those cameos, but I certainly understand the complaints.....*neither* cameo contributed anything to their respective stories whatsoever. And if, god forbid, Stephanie Szostak plays Janet Van Dyne in IM3 slamming Tony Stark against a wall and trying to molest him, I guarowntee you it will contribute nothing to the story whatsoever, either....other than a very awkward moment for folks who don't even know who the hell she's supposed to be, and a collective "wtf?!?!" from the folks who do know.